Factors affecting Reduction of Slippage in Posterolateral Fusion for Spondylolytic Spondylolisthesis / 대한척추외과학회지
Journal of Korean Society of Spine Surgery
;
: 177-183, 2006.
Artículo
en Coreano
| WPRIM
| ID: wpr-152052
ABSTRACT
STUDY DESIGN:
A retrospective study.OBJECTIVES:
The purpose of this study was to analyze the reduction of spondylolisthesis after postural reduction and pedicle screw instrumentation for low-grade spondylolytic spondylolisthesis, and to determine the factors affecting reduction. MATERIALS ANDMETHODS:
Twenty patients (mean age 52.5 years old; range, 30-71 years old), who underwent pedicle screw instrumentation and posterolateral fusion after wide laminectomy and facetectomy, were reviewed. The minimum follow-up period was 2 years. The percentage of slippage was measured on lateral radiographs by the Taillard method. We measured the slip angle, sacral inclination, lumbar lordosis, disc height, and angulation and translation on flexion-extension stress views. These radiological parameters were analyzed statistically for correlation with the reduction of slippage.RESULTS:
In these passive reduction surgeries, no forceful reduction was attempted. The average percentage of slippage was 20.6% preoperatively, 13.0% after instrumentation, and 19.5% at the last visit. The reduction of slippage had a correlation with hypermobile angulation on flexion-extension radiographs (p=0.02). There were no significant correlations between the amount of reduction and translation on flexion-extension radiographs (P=0.99), slip angle (P=0.79), disc space height (P=0.6), lumbar lordosis (P=0.68), and sacral inclination (P=0.35).CONCLUSION:
Loss of reduction that was achieved by postural reduction with pedicle screw instrumentation for spondylolytic spondylolisthesis occurred at the final follow-up. There was a negative correlation between the reduction of slippage and hypermobile angulation on flexion-extension dynamic radiographs.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Espondilolistesis
/
Estudios Retrospectivos
/
Estudios de Seguimiento
/
Laminectomía
/
Lordosis
Tipo de estudio:
Estudio observacional
/
Estudio pronóstico
Límite:
Animales
/
Humanos
Idioma:
Coreano
Revista:
Journal of Korean Society of Spine Surgery
Año:
2006
Tipo del documento:
Artículo
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